Série 4000
E285810
Série 4000 is a class of high-speed electric multiple unit trains used by Comboios de Portugal for its Alfa Pendular premium intercity services.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Série 4000 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2642493 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Série 4000 Context triple: [Alfa Pendular, usesRollingStock, Série 4000]
-
A.
Series 40
Series 40 is Nokia’s proprietary mobile operating system and software platform used on its feature phones, known for its widespread adoption in mid-range handsets before the smartphone era.
-
B.
Quadra series
The Quadra series was a line of high-end Apple Macintosh desktop computers from the early 1990s, known for using Motorola 68040 processors and targeting professional and power users.
-
C.
Q series
The Q series is Audi’s lineup of luxury crossover and sport utility vehicles, ranging from compact to full-size models.
-
D.
G Series
G Series is Dell’s line of gaming-focused laptops and desktops designed to offer strong performance at more affordable prices than its premium Alienware range.
-
E.
Series 80
Series 80 is a Symbian-based user interface platform designed primarily for Nokia’s business-oriented communicators, featuring a wide landscape screen and full QWERTY keyboard support.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Série 4000 Target entity description: Série 4000 is a class of high-speed electric multiple unit trains used by Comboios de Portugal for its Alfa Pendular premium intercity services.
-
A.
Series 40
Series 40 is Nokia’s proprietary mobile operating system and software platform used on its feature phones, known for its widespread adoption in mid-range handsets before the smartphone era.
-
B.
Quadra series
The Quadra series was a line of high-end Apple Macintosh desktop computers from the early 1990s, known for using Motorola 68040 processors and targeting professional and power users.
-
C.
Q series
The Q series is Audi’s lineup of luxury crossover and sport utility vehicles, ranging from compact to full-size models.
-
D.
G Series
G Series is Dell’s line of gaming-focused laptops and desktops designed to offer strong performance at more affordable prices than its premium Alienware range.
-
E.
Series 80
Series 80 is a Symbian-based user interface platform designed primarily for Nokia’s business-oriented communicators, featuring a wide landscape screen and full QWERTY keyboard support.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf |
electric multiple unit
ⓘ
high-speed train ⓘ tilting train ⓘ |
| brakingSystem |
electrodynamic brakes
ⓘ
pneumatic brakes ⓘ |
| category | passenger train ⓘ |
| collectionMethod | pantograph ⓘ |
| countryOfOperation | Portugal ⓘ |
| electricSystem |
25 kV 50 Hz AC overhead line
ⓘ
3 kV DC overhead line ⓘ |
| hasClass |
first class
ⓘ
second class ⓘ |
| hasFeature |
high-speed capability
ⓘ
multiple-unit configuration ⓘ tilting carbody ⓘ |
| hasOnboardService |
air conditioning
ⓘ
bar ⓘ reserved seating ⓘ |
| introducedForService | Alfa Pendular ⓘ |
| maximumSpeed | 220 km/h ⓘ |
| numberOfCarsPerTrainset | 6 ⓘ |
| operator | Comboios de Portugal ⓘ |
| operatorAbbreviation | CP ⓘ |
| powerType | electric ⓘ |
| primaryRoute |
Lisbon–Braga route
ⓘ
surface form:
Lisbon–Braga
Lisbon–Faro ⓘ Lisbon–Porto ⓘ Porto–Faro ⓘ |
| railwayCompany | Comboios de Portugal ⓘ |
| serviceBrand | Alfa Pendular ⓘ |
| serviceEntryYear | late 1990s ⓘ |
| serviceType | premium intercity ⓘ |
| tiltingTechnology | active tilting ⓘ |
| trackGauge | 1,668 mm Iberian gauge ⓘ |
| trainLength | approximately 158 m ⓘ |
| usedBy | long-distance passengers in Portugal ⓘ |
| usedFor | Alfa Pendular services ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Série 4000 Description of subject: Série 4000 is a class of high-speed electric multiple unit trains used by Comboios de Portugal for its Alfa Pendular premium intercity services.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.